package s04;

/**
 * @ClassName User
 * @Description 成员变量设计到初始化-构造方法初始化
 * @Author Li
 * @Date 2022/8/2 10:58
 * @ModifyDate 2022/8/2 10:58
 * @Version 1.0
 */
public class User {
    final String USERNAME;
    private int age;

    public User(String username, int age) {
        this.USERNAME = username;
        this.age = age;
    }
}
